Window stop



Oct. 24, 1950 R. W. sHEMANsKY 2,527,278

WINDOW STOP Filed Aug. l, 1946 25:29-@ /f #w25/vra? -9 FFW/www Jv.Jef/awww TWP/rey Patented Oct. 24, T950 2,527,228 WINDOW sporl'RaymanfdfYV.:fSchemanslxylletroit,Mich. u ...Applicationnugqst 1,1946,:seria1iiva-687,802'

My invention relates to a new and useful improvement in a window stopadapted for mounting in conjunction with a pair of slidable sashes toprovide means for either securing said sashes in fixed relation when inclosed position or permitting said sashes to be relatively moved apredetermined distance.

It is an object of the present invention to provide a window stop ofthis class which will be simple in structure, economical to manufacture,durable, easily and quicklyoperated, highly efficient in use, andreadily installed.

Another object of the invention is the provision of a window stop ofthis class which may be used for limiting slidable movement of a pair ofwindow sashes relative to each other to a predetermined degree or whichmay be moved to position for preventing movement of either of the sashesout of closed position. l l

Other objects will appear hereinafter.

It is recognized that various modifications and changes may be made inthe detail of structure illustrated without departing from the inventionand it is intended that such shall be embraced within the scopevof theclaim which forms a part hereof.

Forming a part of the specification are drawings in which,

Fig. 1 is a side elevational view of the invention showing it appliedand illustrating the window sashes in closed position,

Fig. 2 is a view similar to Fig. 1, illustrating the window sashes movedrelatively to each other out of closed position,

Fig. 3 is a side elevational view of the invention showing it appliedand in use as a'securing member for securing the window sashes againstrelative movement from closed position.

Fig. 4 is a sectional view taken on line 4-4 of Fig. 2,

Fig. 5 is a sectional view taken on line 5-5 of Fig. 1, with partsbroken away and parts shown in section.

In the drawings I have shown the invention applied in connection with apair of window sashes 9 and I Il which are slidably mounted in a windowframe II. Mounted on the vertically extending side rail I2 of the uppersash is a metal plate I3 having one edge turned to provide a flange I4which extends inwardly toward the pane of glass 25 and which terminatesin spaced relation to the inner face of the pane of glass 25. The end ofthe plate I3 is turned inwardly to provide a flange I5 which serves as astop.

Mounted on the upper rail I6 of the lower sashr in.' (C1. cs2- 194)`is'faY metal plate I'lfhaving the upwardly projecting ange I8 in whichis formed the bayonet slot I9. The metal plate 2IlI is provided with therivet 2I which rides in the slot I9. This plate 20 is angularly turnedat its end to provide the angularly turned portion 22 which is againangularly turned to provide the doubled over portion 23. The end of theplate 20 is provided with a V notch 24.

When the parts are mounted as shown in the drawings a plate 20 may beswung either to the dotted line position or to the full line positionshown in Fig. 1. When swung to the full line position the plate 20 is inoperative position and is in such a position that the angularly turnedportion 23 will engage behind the ange I4 as clearly shown in Fig. 4.When in this position the sashes may be moved relatively to each otherand Iwhen the lower sash is raised the flange 23 will ride behind theflange I4 until the abutment or stop plate I5 is engaged by theflange23. When this engagement is effected the sashes can be moved nofarther and, consequently, there is thus provided a means for limiting arelative movement of the sashes from closed position so that it becomespossible to open the window at night and leave it partially open withthe assurance that it cannot be opened further. When it is desired torender the device inoperative the plate 20 will be swung to the dottedline position shown in Fig. 1, and the sashes then may be movedrelatively to each other without interference from the mechanism mountedthereon.

It will be noted that in these positions the rivet is occupying the endof the slot I9. When the plate 2U is moved to the left of Fig. 2, sothat the rivet reaches the end of the slot I9 it will engage in therecess Z'I and when in this position it may be moved to the positionshown in Fig. 3 so as to engage the lower edge of the plate I3 and thusserve as a means for securing the windows in fully closed position andpreventing their relative movement from closed position.

The invention is one which may be very inexpensively manufactured, whichis durable and which has proven itself most efficient in use.

What I claim is:

A window stop adapted for use with a pair of relatively movable Windowsashes, one of said sashes being a lower sash and the other an uppersash and said upper sash having a vertically extending side rail andsaid lower sash having a horizontally extending top rail and a pane ofglass in said upper sash positioned outwardly from said side rail, saidstop comprising: an elon- 3 gated, vertically extended plate mounted atone edge on the face of said side rail; an angularly turned,longitudinally extending flange along the opposite edge of said plate,turned inwardly toward said pane of glass and spaced therefrom; anabutment flange on the upper end of said plate and turned inwardlytoward said glass and spaced therefrom; a bracket mounted on the upperface of the top rail of the lower sash and having a longitudinallydirected slot formed therein provided With a notch at 'one end; aswingable plate; a pin pivotally mounting said swingable plate on saidbracket, said pin slidably engaging in said slot and being movable insaid slot for engaging in said notch; a doubled-over flange on the freeend of said swingable plate terminating in spaced relation to the mainbody of said swingable -plate to provide a space for receiving lsaidfirst-named iiange upon relative movement of said sashes a predetermineddistance from closed position,

and. adapted for engaging said abutment upon further relative movementof said sashes from closed position, said swingable plate having a notchformed in its free end engageable with the lower edge of said verticallydirected plate upon engagement of said pin in the notch of said slot forpreventing relative movement of said sashes from closed position.

RAYMOND W. SCI-IEMANSKY.

y REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS

